Santa Cruz Biotechnology offers Low, Broad and High Range Markers for use as prestained molecular weight standards in Western blotting applications. Markers are provided in SDS-PAGE loading buffer and may be loaded directly into an SDS-PAGE gel. Each vial contains 500 µl, sufficient for 100-500 uses. No dilution or reconstitution is required. Also see our Cruz Marker™ Molecular Weight Standards, which appear on the final Western Blot film with your results.